Product Description
Restore compression and long-haul durability with the MAHLE 224-3732WR.040 Piston With Rings for 2007.5–2018 Ram 6.7L Cummins ISB. This +.040" (1.00 mm) oversize set features expansion-controlled pistons with compensated ring grooves for stable ring loading, low oil consumption, and quiet operation under heavy tow, work-truck heat cycles, and daily use. Sold as a complete set of six with matched ring packs, pins, and clips.
Fitment
- 2007.5–2018 Ram 2500 / 3500 / 4500 / 5500 – 6.7L Cummins ISB (24-valve, common-rail)
Cross-Reference / Alternatives (Mahle on CPP Diesel only)
Notes
Professional boring/plateau-honing to +.040" required. Always verify piston-to-wall clearance, protrusion, and set ring end gaps per service manual/Mahle specs.
FAQ
Is this priced per piston or for all six?
It’s a complete engine set—six (6) pistons with matched ring packs, pins, and clips.
Will it fit my 2007.5–2018 6.7L Cummins?
Yes, when your block is correctly bored and finish-honed to +.040" (1.00 mm). See Fitment above.
Are the rings included and pre-matched?
Yes—Mahle supplies matched ring sets with each piston in this kit.
Specifications for Mahle 224-3732WR.040
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | 224-3732WR.040 |
| Oversize | +.040" (1.00 mm) |
| Engine Compatibility | 2007.5–2018 Ram 6.7L Cummins ISB (24V, common-rail) |
| UPC | 639789311375 |
| GTIN | 639789311375 |
| Shipping | Free Shipping (ground); optional shipping insurance available at checkout |
| Prop 65 | This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Learn more |
